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If at each point of the curve y = x^(3) ...

If at each point of the curve `y = x^(3) - ax^(2) + x + 1`, the tangent is inclined at an acute angle with the positive direction of the x-axis, then a)`a gt 0` b)`a le sqrt(3)` c)`- sqrt(3) le a le sqrt(3)` d)none of these

A

`a gt 0`

B

`a le sqrt(3)`

C

`- sqrt(3) le a le sqrt(3)`

D

none of these

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The correct Answer is:
C
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